Which is not a property of mathematical proofs?
Conclusion has nothing to do with math
it is for writeing.
To find out how many brothers they have, they need to multiply 4×1= 4
So there are 4 brothers.
I hope this helped :)
We will call:
M=Mari
J=Jen
Initial equations:
M=2J
M+J=480
(the fact that they work 20 hours a week is not needed in this problem information)
Plug in:
2J+J=480
3J=480
J=160
Jen makes $160 a week.
Therefore:
M=2J
M=2(160)
M=320
Mari makes $320 per week
Jen makes $160 per week
Answer:
the right answer is 254
Step-by-step explanation:
902/5+551/2
=63.5
and Natalie swims the pool 4 times
therefore,
4×63.5=254
